Snorkel loop: Difference between revisions
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'''Snorkel loop''' is a {{slcells|12|text=12-cell}} [[still life]]. | '''Snorkel loop''' is a {{slcells|12|text=12-cell}} [[still life]]. | ||
It can be interpreted as a [[claw]] with an attached [[hooked tail]]. | It can be interpreted as a [[claw]] with an attached [[hooked tail]]. | ||
== Glider synthesis == | == Glider synthesis == | ||
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|style = width:360px; | |style = width:360px; | ||
}} | }} | ||
== Commonness == | |||
Snorkel loop is the eighty-third [[List of common still lifes|most common still life]] in [[Achim Flammenkamp's census]], being less common than [[beehive on table]] but more common than [[trans-barge with tail]].<ref>{{citeAchim|accessdate=January 15, 2009}}</ref> It is also the ninety-fifth most common object on [[Adam P. Goucher]]'s [[Catagolue]].<ref>{{citeCatagolueStats|June 24, 2016}}</ref> | |||
There are two collisions in the [[octo3obj database]] with a snorkel loop in the ash.{{refn|Headerless RLEs of the collisions are {{headerlessRLE|3b2o3b2o$3b2o3b2o2$8b2o$4b2o2b2o$4b2o2$2o6b2o$2o2b2ob2o$4b2o3bo!}} and {{headerlessRLE|4b2ob2o$4b2ob2o$2o$2o3$b2o$b2o2b2ob2o$5b2ob2o$bo$2o$obo!}}}} | |||
== See also == | == See also == | ||
Revision as of 08:29, 25 October 2022
| Snorkel loop | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 12 | ||||||||
| Bounding box | 6 × 5 | ||||||||
| Frequency class | 21.3 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Robert Wainwright Everett Boyer | ||||||||
| Year of discovery | 1973 | ||||||||
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- Not to be confused with Twelve loop.
Snorkel loop is a 12-cell still life. It can be interpreted as a claw with an attached hooked tail.
Glider synthesis
A snorkel loop can be constructed with four gliders; known alternate syntheses are available in Mark Niemiec's database.[1]
| A 4G synthesis (click above to open LifeViewer) |
Commonness
Snorkel loop is the eighty-third most common still life in Achim Flammenkamp's census, being less common than beehive on table but more common than trans-barge with tail.[2] It is also the ninety-fifth most common object on Adam P. Goucher's Catagolue.[3]
There are two collisions in the octo3obj database with a snorkel loop in the ash.[4]
See also
References
- ↑ The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-113.rle)
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
- ↑ Headerless RLEs of the collisions are 3b2o3b2o$3b2o3b2o2$8b2o$4b2o2b2o$4b2o2$2o6b2o$2o2b2ob2o$4b2o3bo! and 4b2ob2o$4b2ob2o$2o$2o3$b2o$b2o2b2ob2o$5b2ob2o$bo$2o$obo!
External links
- Snorkel loop at Adam P. Goucher's Catagolue
- 12.34 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 21
- Natural periodic objects
- Periodic objects with minimum population 12
- Patterns with 12 cells
- Patterns found by Robert Wainwright
- Patterns found by Everett Boyer
- Patterns found in 1973
- Patterns that can be constructed with 4 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 12 cells